Trifield Knowledge Base

How to shield or avoid electromagnetic fields By the folks at Alphalab Inc. Makers of the Trifield® EMF meter (model TF2) RF: Radio waves and microwaves can be reflected off a metal sheet in exactly the same way that light...

Magnetic and electric fields exist nearly everywhere, and the following is a brief description of what these fields are, how they are created, and what effects they produce. The concept of an “electric field” arose when electrons were observed to...